Kurzweil PC2 Series User Manual

Troubleshooting
Front Panel Problems
5-11
Front Panel Problems
LCD not lit
1. Check the LCD contrast potentiometer. Turn the pot to see if there is any change.
Note: If you are servicing a PC2R rack unit, the LCD Contrast is located on the front
panel. If you are servicing a PC2 keyboard, it is located on the rear panel.
2. Check the stranded wire cable from the LCD Board to J405 on the Engine Board.
Disconnect and reseat the cable.
3. Check the flat ribbon cable from the LCD Board to J406 on the Engine Board. Disconnect
and reseat the cable.
4. Check the solder connections on the LCD and Engine Boards.
5. Refer to the Engine Board schematics and check the signal path.
Buttons, Sliders or Controllers not working
1. Run the Scanner Tests.
Note: If you are servicing a PC2R rack unit, simultaneously press the Internal Voices,
KB3 and MIDI Setups buttons located in the top row of the Modes section. If you are
servicing a PC2 keyboard, simultaneously press the 4, 5 and 6 buttons.
2. Refer to the Interconnect Diagram. See page 5-13 for rack models or page 5-14 for
keyboard models.
3. Check all related cables.
4. Disconnect and reseat the cables.
5. Check the solder connections at the connectors.
6. Check front panel ribbon cable(s).
7. Refer to the Connector Board schematics and check U1, IC Scanner 37451, for signal
activity.

Kurzweil PC2 Series Specifications

General

Polyphony	64 voices
Sound Engine	VAST (Variable Architecture Synthesis Technology)
MIDI	In, Out, Thru
Multitimbral	16 parts
Velocity Sensitivity	Yes
Aftertouch	Yes
Year Released	1999
Display	LCD
Controllers	Pitch wheel, modulation wheel
Inputs	Sustain pedal, expression pedal
Memory	128 setups
Keyboard	76-note, semi-weighted
Outputs	Stereo outputs, headphone output